/*
 * Copyright 2003 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.taketoday.context.cglib.transform;

import cn.taketoday.context.asm.ClassVisitor;
import cn.taketoday.context.asm.MethodVisitor;

public class MethodFilterTransformer extends AbstractClassTransformer {
  private final MethodFilter filter;
  private final ClassTransformer pass;
  private ClassVisitor direct;

  public MethodFilterTransformer(MethodFilter filter, ClassTransformer pass) {
    this.filter = filter;
    this.pass = pass;
    super.setTarget(pass);
  }

  public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
    return (filter.accept(access, name, desc, signature, exceptions) ? pass : direct).visitMethod(access, name,
                                                                                                  desc, signature, exceptions);
  }

  public void setTarget(ClassVisitor target) {
    pass.setTarget(target);
    direct = target;
  }
}
